vjw0rm | 07176693f0658bb82e3408ef1e85a545b039acf315749ce888dfce55252696cc

Analysis

max time kernel
139s
max time network
143s
platform
windows10-1703_x64
resource
win10-20230621-en
resource tags

arch:x64arch:x86image:win10-20230621-enlocale:en-usos:windows10-1703-x64system
submitted
29/06/2023, 22:45

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General

Target

Jsreceipt0193617_PDF.html
Size

103B
MD5

c349aed7796c6cf3784b423f7a348429
SHA1

1f9f048f524a83ad569e0df65b709bc1de4f344f
SHA256

07176693f0658bb82e3408ef1e85a545b039acf315749ce888dfce55252696cc
SHA512

f505e8dfd29079f11b817204334e65a6c307e6bed8d5a04a7a95fef32bf4031040ef7830b7f039f596c904a489de2887d0903016204e1e78b9715126ccb1e455

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://jsnew9400.duckdns.org:9400

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
40	4968	WScript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Jsreceipt0193617_pdf.js	WScript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Windows\CurrentVersion\Run\MS8ABDCUZM = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jsreceipt0193617_pdf.js\""	WScript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = dd2bc56844a4d901	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 51 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A8247684-16CE-11EE-8E27-6E213F19522E} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042267"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\NextUpdateDate = "394892294"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate\NextUpdateDate = "394860303"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2092025313"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b8e0b13b3a49a242affff6bdc8ca8951000000000200000000001066000000010000200000009107a7d3c7e718345d1f1bd7a04e917d65c72c94496236ce3a43e5d2e60bc78f000000000e8000000002000020000000d853a6fcdc83c08b18aa741ce512836c3842200cb2fd2f24f257300f41241ed020000000a0275ac238d0c7bda4d803cc838b8fa1fc862fd162be4a4cbf2f2799d4e6983d4000000045887063e074585ae0d41e9aeea7def128b71ecef6649031e1b02fdb928d712c07be9b75f75b5a3d421d4ca05da0d9981ed3364734d34124198c5417d004b2ff	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$WordPress	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2092025313"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e035f17ddbaad901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "394843708"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$MediaWiki	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\HistoryJournalCertificate	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042267"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000b8e0b13b3a49a242affff6bdc8ca8951000000000200000000001066000000010000200000000321e9896b50982f03994b9418b9e581a0a0ec42cf03b73176b62d9d58c876ea000000000e8000000002000020000000b7946d74b9c554f68724fd6aac14196c5e4988e5d3b90e68f2d9de1192705599200000008d9d5e1c116516b4bdaeb3790fdeafabeb4895124786267eb26a45fc348a3e6840000000bb8bd962cbf58c2abf368361874da5939da1b14f6cf73ec09fb24634533924eb50bff7973518dc3ec396109313c20856cafa3ffec82e6181b5dc8e8e69fa9360	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\FileVersion = "2016061511"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2101557578"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$blogger	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Telligent	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 4	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\RepId\PublicId = "{5B4C3D4F-E825-4054-AAA9-B9B0F7CAC3C4}"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$http://www.typepad.com/	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\RepId	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31042267"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 20f7d67ddbaad901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$Discuz!	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000\Software\Microsoft\Internet Explorer\FlipAhead\Meta\generator$vBulletin 3	iexplore.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1032500962-593345068-3128969974-1000_Classes\Local Settings	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1824	iexplore.exe
1824	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1824	iexplore.exe
1824	iexplore.exe
2116	IEXPLORE.EXE
2116	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 2116	1824	iexplore.exe	66
PID 1824 wrote to memory of 2116	1824	iexplore.exe	66
PID 1824 wrote to memory of 2116	1824	iexplore.exe	66

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\Jsreceipt0193617_PDF.html
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1824 CREDAT:82945 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2116

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4760

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Temp1_Jsreceipt0193617_pdf.zip\Jsreceipt0193617_pdf.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:4968

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
4b958c078984d97dc80efb7b9c9db5d9

SHA1
e36452e7ea54d63035d7a8d81d13ea506fc8357f

SHA256
0b69c52b5e2faba2e0b7d6e67a7693e333d0aea0dbb80cb95764fd50b9a0e799

SHA512
75fbbc35d97c0d0513324ee27395c74d70e2b2a3dcdd0c03e4014b0b0307c9e7742c49a165677cee79563f4efbe56c94bbaea2c7867d3401cbe1fabab7df9c91

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
cbc113b9420f3adf1dfff952ce89268a

SHA1
e73e42c10cdfc0ca97f293e6da8382ccec5d8b95

SHA256
07c6a299470f1359e6f5fc545955328a938c69e06580ba3a3079b7faf509cf3f

SHA512
316517d3ea3c246421c3aaacef1da66d943598452fcc3f9b00609c182bd63f0351cb03ee1eafecfbf2dd25a18442b1105a754ec55f566fe65ccbc14d62df33b2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\KNTZ9GX2\Jsreceipt0193617_pdf.zip.5khy18z.partial

Filesize
300KB

MD5
b3f848fe0250349da6b62939ac0b848e

SHA1
9b15a7ca6b7832c48f028de394bfd0c796bc560a

SHA256
a174433a80690c315a52012c68ca86c3b03683ff6fd8420a261146d747ba93fb

SHA512
c5e46ca54d198a6287769078130b266d21c72efb7a1ca8c9d69ed1be8613619c6e5cc1436665151b1ad86a5533bbd7546060728de4393b783066302cc41717cd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XGKDZR89\Jsreceipt0193617_pdf[1].zip

Filesize
300KB

MD5
b3f848fe0250349da6b62939ac0b848e

SHA1
9b15a7ca6b7832c48f028de394bfd0c796bc560a

SHA256
a174433a80690c315a52012c68ca86c3b03683ff6fd8420a261146d747ba93fb

SHA512
c5e46ca54d198a6287769078130b266d21c72efb7a1ca8c9d69ed1be8613619c6e5cc1436665151b1ad86a5533bbd7546060728de4393b783066302cc41717cd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XGKDZR89\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\62VHVC1L.cookie

Filesize
608B

MD5
720e72acd6b76dc2351d02f51109e637

SHA1
ced7e01ff20d7d3a523854a7dff71f2d33f9d0f1

SHA256
31e48c1b155330b170d99cf5d083a3cde07bf473f125be651a38cf218107ac1b

SHA512
3c9b44cb521eeb4ab96111200d9be6398ce9b31ce1f29838bef9fe7bba71df0b2c16419e412bd9f9e3c2f7ecc7e118f0791d3f03c640c70e8aed9424580c96d5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\S9ECIX6B.cookie

Filesize
609B

MD5
93516833b3cbaab82e8ff82b3d6e2be9

SHA1
cdcdd6355b5b981c0f81db38b62e68bbd59c5a7c

SHA256
5d1898aab83d148a1ae580939920e4c63c47a28e8bf91fb6acbdfc4e8e2928b2

SHA512
10d976c732773234d585bd3cc67f0d4ddbb4a019d3aa486bffc50d186c0543992e906a6681b5f881918d6beead16b94cedae44714ac8c8fe08bdd2d65daa05fa

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads